Orbital elements of PEGASUS R/B
| Launched | 5 December 1998 | 
| Flight ended | – | 
| Launch site | Western Range Airspace | 
| Owner | United States | 
| NORAD ID | 25561 | 
| Date fetched | Epoch osculation | Inc. [°] | Ecc. | RA asc node [hr] | Arg Peri. [°] | Mean anom [°] | Mean motion [rev/day] | Abs. mag | 
| Date fetched | Epoch osculation | Inc. [°] | Ecc. | RA asc node [hr] | Arg Peri. [°] | Mean anom [°] | Mean motion [rev/day] | Abs. mag | 
| 2025 Oct 30 18:57 | 2025 Oct 29 08:32:08 | 69.9117 | 0.00090 | 11.5920 | 251.1018 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 29 18:57 | 2025 Oct 29 08:32:08 | 69.9117 | 0.00090 | 11.5920 | 251.1018 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 28 18:57 | 2025 Oct 23 23:04:15 | 69.9126 | 0.00091 | 12.5077 | 256.6072 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 27 18:57 | 2025 Oct 23 23:04:15 | 69.9126 | 0.00091 | 12.5077 | 256.6072 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 26 18:57 | 2025 Oct 23 23:04:15 | 69.9126 | 0.00091 | 12.5077 | 256.6072 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 25 17:57 | 2025 Oct 23 23:04:15 | 69.9126 | 0.00091 | 12.5077 | 256.6072 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 24 17:57 | 2025 Oct 23 23:04:15 | 69.9126 | 0.00091 | 12.5077 | 256.6072 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 22 17:56 | 2025 Oct 18 04:00:42 | 69.9130 | 0.00092 | 13.4912 | 263.0088 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 21 17:56 | 2025 Oct 18 04:00:42 | 69.9130 | 0.00092 | 13.4912 | 263.0088 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 20 17:56 | 2025 Oct 18 04:00:42 | 69.9130 | 0.00092 | 13.4912 | 263.0088 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 19 17:56 | 2025 Oct 18 04:00:42 | 69.9130 | 0.00092 | 13.4912 | 263.0088 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 18 17:56 | 2025 Oct 18 04:00:42 | 69.9130 | 0.00092 | 13.4912 | 263.0088 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 17 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 16 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 15 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 14 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 12 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 11 17:57 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 09 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 08 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 07 17:56 | 2025 Oct 07 07:27:44 | 69.9122 | 0.00092 | 15.3338 | 274.6262 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 05 17:56 | 2025 Sep 26 04:29:54 | 69.9115 | 0.00093 | 17.2216 | 287.0037 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 04 17:57 | 2025 Sep 26 04:29:54 | 69.9115 | 0.00093 | 17.2216 | 287.0037 | 108.9171 | 15.02009 | 6.743 | 
| 2025 Oct 03 17:57 | 2025 Sep 26 04:29:54 | 69.9115 | 0.00093 | 17.2216 | 287.0037 | 108.9171 | 15.02009 | 6.743 |